On Saturday 12th May 2018, the Archdiocese of Nairobi Education Office held its Annual Walk in 8 walk routes. His Lordship Bishop David Kamau launched the 1 million tree planting campaign on the same day at Loreto Girls Limuru.

"We plant trees primarily for their beauty and to provide shade but they do create many other benefits. Trees can soothe, relax, us and help us connect with nature and our surroundings," said His Lordship.

He added that color green is a calming, cool color that helps our eyes quickly recover from strain. By planting and caring for trees, we help improve our surrounding, reduce pollution, lower energy costs, improve the appearance of our community and increase the value of our property.

“If you destroy the forest then the river will stop flowing, the rains will become irregular, the crops will fail and you will die of hunger and starvation.” Professor Wangari Maathai